Maintain the emissions system on your 2011-2016 Chevy/GMC 6.6L LML Duramax with a high-quality replacement Catalytic Converter. Universal Catalytic Converters can be used on several different applications and typically are installed by welding and cutting your existing exhaust system. With different types on the market, you can find Direct-fit Catalytic Converters that are specially engineered to mount in the factory location on your vehicle without the need for additional fabrication. XDP offers Catalytic Converters from Magnaflow to replace the clogged component on your vehicle.